[R] Error using glmmPQL

[Andrew Perrin]

Can anyone shed any light on this?

> doubt.demographic.pql<-glmmPQL(random = ~ 1 | groupid/participantid,
+                                fixed = r.info.doubt ~
+            realage + minority + female + education + income + scenario,
+                                data = fgdata.df[coded.resource,],
+                                na.action=na.omit,
+                                niter=50,
+                                family=binomial(link=probit))
iteration 1
iteration 2
iteration 3
iteration 4
iteration 5
iteration 6
iteration 7
iteration 8
Error in logLik.reStruct(object, conLin) :
        NA/NaN/Inf in foreign function call (arg 3)

The traceback() output is very long, so I won't post it, but you can see
it here:

http://www.unc.edu/~aperrin/stuff/diagnostics

Thanks,
Andy Perrin

----------------------------------------------------------------------
Andrew J Perrin - http://www.unc.edu/~aperrin
Assistant Professor of Sociology, U of North Carolina, Chapel Hill
clists at perrin.socsci.unc.edu * andrew_perrin (at) unc.edu